The Internet is becoming a key source of information on emerging diseases and has become integral to public health surveillance. Internet-based systems have become a critical medium for clinicians, public health practitioners, and the public seeking health information. Data about diseases and outbreaks are disseminated not only through online announcements by government agencies but also through informal channels, ranging from press reports to blogs to chat rooms to analyses of Web searches. A Perspective from The New England Journal of Medicine, DOWNLOAD
